DELTA 1 DEB, 21461
Orbit data source: Space-Track
DELTA 1 DEB, 21461 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 UTC launched from the Air Force Western Test Range (AFWTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
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21461 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 23 hours ago
TLE from 23 hours ago
0 DELTA 1 DEB
1 21461U 75052EV 25348.59497646 .00000011 00000-0 11124-3 0 9999
2 21461 99.7314 92.1775 0205868 126.4713 1.1330 13.20448658666336Epoch: 2025-12-14T14:16Z
TLE epoch observation values (Epoch: 2025-12-14T14:16:45.966Z)
Latitude
51.39056°
Longitude
-13.18365°
Altitude
1,035.513 km
Speed
7.414 km/s
True Right ascension
18h 58m 03s
True Declination
51° 13' 45"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
11:43:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,335.953 km
Perigee altitude
1,024.743 km
Semi-major axis
7,558.485 km
Eccentricity
0.02059
Inclination
99.7314°
RAAN
92.1775°
Arg. of periapsis
126.4713°
True anomaly
1.18088°
Mean anomaly
1.133°
Eccentric anomaly
1.15681°
Mean motion
3.30287 °/min
Orbital period
109 mins
BSTAR
0.00011124
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Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.DELTA 1 DEB Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2025-12-15 19:21:09.000Z | 31.103° NE | 2025-12-15 19:26:09.000Z | 93.565° ESE | 34.534° | 2025-12-15 19:32:09.000Z | 169.511° S |
| 8 mins | 2025-12-15 21:10:09.000Z | 342.423° N | 2025-12-15 21:14:09.000Z | 288.302° WNW | 25.936° | 2025-12-15 21:18:09.000Z | 243.669° WSW |
| 10 mins | 2025-12-16 05:48:09.000Z | 115.305° SE | 2025-12-16 05:53:09.000Z | 59.481° ENE | 26.929° | 2025-12-16 05:58:09.000Z | 7.62° NNE |
| 12 mins | 2025-12-16 07:34:09.000Z | 188.554° SSW | 2025-12-16 07:40:09.000Z | 261.564° W | 37.133° | 2025-12-16 07:46:09.000Z | 332.417° NNW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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